a380 - ata 33 lights - spectronet

Challenges of LED Illumination in Airplanes

Carsten Kohlmeier-Beckmann

Airbus Operations GmbH

August 2013 JENCOLOR Innovation Forum 2013, Jena - C. Kohlmeier-Beckmann

© AIRBUS Operations GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument.

Content

1. LED on Board

2. Challenges

3. Applications

2



The First Lighting Revolution…

… began in 1995 with the

introduction of LED

passenger signs.

They were tiny, rather

pale and expensive –

but extremely reliable.

The introduction of advanced technology is not an easy

task in aerospace industry.



(R)Evolution LED – The Logical Way

May 2011

9,

3

3

A320 – First LED applications

A3456 –

„The Bulbless Cabin“

A380 –

„The Bulbless Aircraft“

A350 –

Full LED cabin

A320neo –

The Full LED aircraft



LED is the Winner


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

A3001980 A320

1987 A3401992 A340-600

2000A3802006 A350

2013

0,82 0,82

0,78 0,59 0,68

0,00

9,96 9,37

8,42

2,21

0,01

0,01

0,00 0,35 0,69

3,46

4,15

6,21

Lights per Seat

Fluorescent Tubes Bulbs LED


Content

1. LED on Board

2. Challenges

3. Applications

6



Environmental Conditions

We look for an universal

genius for our

environmental conditions.

A very few examples:



Humidity/Pressure/Temperature

With every flight, the aircraft (and the cabin) is exposed to

variation of temperature, pressure and humidity.

Cabin Air Humidity

Outside Temperature

Cabin Temperature

Cabin Altitude

Climb Descent

Cruise

The combination of these parameters makes any cavity

inside the aircraft prone to water accumulation.



Water

Drip Water Test: 15min @ 280 l/(m²*h)

Diehl Aerospace

Emergency Power

Supply Unit (EPSU)

20min@1500l/m²/h Not the same requirements as for a RR Corniche...

...but significantly more than the average monthly precipitation in Hamburg *! * between 35 und 61 l/m²



Fire Properties

Fire in the cabin is one of the most

serious events in flight.

Airbus has set high standards, which

have been acknowledged by the

major airworthiness authorities.

FST-Compliance of all materials is a must for use onboard

Polymers, down to component level,

have to demonstrate compliance with

the severe limits for Fire propagation,

Smoke emission and Toxic gas

generation.



EMC: Example Radiated Emission

Limits including „Notches“ for important frequencies...

...become more severe by up to –19 dB, depending on the number

of identical equipment („Multiple Equipment Factor“)



Lifetime

A car is usually designed for 10.000 operating hours.

In contradiction, an aircraft life ends only after 140.000 flight hours.

With other words: When

an A380 is entering the

hangar for its second

yearly maintenance…

...the car is on its

way to the scrap-yard Stephan Wengelinski / pixelio.de



JENCOLOR Innovation Forum 2013, Jena - C. Kohlmeier-Beckmann

Colour Tolerances of LED

13

High colour fidelity and a maximum gamut

are contradictory requirements

They limit the gamut, and as

such reduce the customisation

possibilities.

Production, temperature and

ageing related tolerances

require correction mechanisms

to avoid local colour distortion.

August 2013


Ageing and Tolerances

14

Production tolerances and ageing influence the appearance of

an aircraft cabin.

Precautions against appearance

degradation are necessary.


As a concequence, a high quality

with narrow tolerances at the

beginning of an aircraft life shall

be maintained, ideally over

aircraft lifetime.

Test set up with

LED selection from one batch


Aircraft Life Cycle


A well-known commercial A/C had its maiden flight in 1967.

With several improvements and refurbishments, it is still in

production, thus will be in service at least for another 30 years.

Idea

10 years typ.

First Flight EIS Last Delivery

~2Y

Last use

~30 Y

?

min. 25 Y

We need long-term solutions with robust

obsolescence strategies

A cabin refurbishment is planned typically every 7 years in service.


Content

1. LED on Board

2. Challenges

3. Applications

16



Applications


Illuminated Handrail


18

Applications


New Freedom with LED

A380 Emirates

A380 Emirates


19

Applications


A380 Emirates A340 Lufthansa


A340 Emirates

Dawn over Siberia Emirates



Next Generation Is Airborne!

21


Thank you for

your attention!

© AIRBUS Operations GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. 22


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a380 - ata 33 lights - spectronet

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